s390/pci: DMA support
Add DMA IOMMU support using 4K page table entries. Implement dma_map_ops.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 72694fb..7f4ce8d 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -48,6 +48,8 @@
static void clp_store_query_pci_fngrp(struct zpci_dev *zdev,
struct clp_rsp_query_pci_grp *response)
{
+ zdev->tlb_refresh = response->refresh;
+ zdev->dma_mask = response->dasm;
zdev->msi_addr = response->msia;
pr_debug("Supported number of MSI vectors: %u\n", response->noi);
@@ -97,6 +99,8 @@
zdev->bars[i].val = le32_to_cpu(response->bar[i]);
zdev->bars[i].size = response->bar_size[i];
}
+ zdev->start_dma = response->sdma;
+ zdev->end_dma = response->edma;
zdev->pchid = response->pchid;
zdev->pfgid = response->pfgid;
return 0;